3-Axis, 4-Axis and 5-Axis CNC Machining Centers
Brass
CNC Machining Tolerances
For metals, our Breton Precision CNC machining service adheres to the ISO 2768-m standard, and for plastics, we follow ISO 2768-c. For custom tolerances, mark them clearly on your drawing.
Standards |
CNC Milling |
CNC Turning |
Maximum Part Size |
4000×1500×600 mm 157.5×59.1×23.6 in. |
200×500 mm 7.9×19.7 in. |
Minimum Part Size |
4×4 mm 0.1×0.1 in. |
2×2 mm 0.079×0.079 in. |
Minimum Feature Size |
Φ 0.50 mm Φ 0.00197 in. |
Φ 0.50 mm Φ 0.00197 in. |
Standard Tolerances |
Metals: ISO 2768-m |
Metals: ISO 2768-m |
Linear Dimension |
+/- 0.025 mm |
+/- 0.025 mm |
Hole Diameters |
+/- 0.025 mm |
+/- 0.025 mm |
Shaft Diameters |
+/- 0.025 mm |
+/- 0.025 mm |
Edge Condition |
Sharp corners will be removed in the form of a chamfer or radius. The size of the chamfer, or resulting radii, must be indicated on the drawing. |
|
Threads and Tapped Holes |
Diameter: Φ 1.5-5 mm, depth: 3×diameter Diameter: Φ 5 mm or more, depth: 4-6×diameter |
Diameter: Φ 1.5-5 mm, depth: 3×diameter Diameter: Φ 5 mm or more, depth: 4-6×diameter |
Breton Precision can produce threads of any specification and size required by our customers. | ||
Text |
Minimum width of 0.5 mm, depth of 0.1 mm Breton Precision can use CNC engraving or laser carving to create standard text based on customers’ requirements. |
Breton Precision can use laser marking to create standard text for CNC turned parts. |
Lead Time |
7 business days |
7 business days |
